CN201018633Y - Embedded type background music controller - Google Patents
Embedded type background music controller Download PDFInfo
- Publication number
- CN201018633Y CN201018633Y CNU2006201522936U CN200620152293U CN201018633Y CN 201018633 Y CN201018633 Y CN 201018633Y CN U2006201522936 U CNU2006201522936 U CN U2006201522936U CN 200620152293 U CN200620152293 U CN 200620152293U CN 201018633 Y CN201018633 Y CN 201018633Y
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- background music
- controller
- electric circuit
- audio frequency
- circuit
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Abstract
The utility model relates to an embedded background music controller. The utility model comprises a micro controller, which is separately through the main line on the microprocessor connected with a data memory, a data stochastic memory, a audio frequency channel switching electric circuit, the failure detection electric circuit, the power source management electric circuit, the audio frequency decoding electric circuit, which is connected through the Ethernet interface electric circuit or the serial interface electric circuit and be used in the audio frequency control. The abandonment of taking CD machine or the hard disk as the audio frequency storage medium guarantees the system controllability and avoided the damage to the mechanism because of long-term movement. . The embedded background music controller combines the merits of the traditional audio frequency controller and the MP3 player, and can download the mp3 document to the local Flash memory through the Ethernet from the master control room sound source server. And then the controller can play the music under the control, control of the main controller and realizes the region broadcast, the monitor and the breakdown reports to the police and, etc.
Description
One, technical field
The utility model relates to the sound system technology, particularly a kind of embedded background music controller.
Two, background technology
At present in the hotel, office building, hotel, the widely used sound system in market be background music system, our broadcast system of often saying just, music is exported each music point amplification through loudspeaker (also claiming the level pressure power amplifier) by recorder, CD player etc.With the digital sound is the background music system of requirement, usually adopts that soft the decompress(ion) mode realizes with personal computer sound cards such as ISA, PCI, MP3.This mode can realize for the background music system among a small circle, but then some is not quite suitable for the occasion that different sources of sound need be provided in large-area park, museum, exhibition center etc.
Existing MP3 player is based on microcontroller, MP3 decoding chip, Flash pattern mostly, and by realizing the transmission of data between USB interface and the main frame.What the control that MP3 is play was then adopted is button operation, can not realize long-range strange land control etc.
Traditional background music system is unidirectional system fully, terminal equipment fault and when damaging, and control centre can't perception, and this long-time running effect and system maintenance level for background music systems such as large-scale park, museums has a significant impact.
Three, utility model content
The purpose of this utility model is to provide a kind of embedded background music controller, multichannel multitone source is provided, possesses the embedded background music controller of network service, audio select and fault detection capability.
The technical solution that realizes the utility model purpose is: a kind of embedded background music controller, it is characterized in that: it comprises microcontroller, on microprocessor, connect data memory, data random memory, voice-grade channel commutation circuit, failure detector circuit, electric power management circuit by bus respectively, audio decoding circuit, and, be used for audio frequency control by ethernet interface circuit or serial interface circuit connection.
The utility model constitutes with ARM microcontroller, MP3 decoding device, network controller and μ C/OS-II embedded real-time operating system.
Communication function: realize the network interconnection with master control calculator machine, communication protocol TCP/IP, traffic rate 10Mbps, a first MP3 melody only need 4-5 to transmit second to finish.Audio-frequency function: built-in MP3 decoding device and WAV decoder, can broadcast form music such as MP3 and WAV.Configuration 256M flash can store 60 head (240 minutes) MP3 melody or 40 minutes WAV waveform music.Two kinds of music can be mixed layout.
Broadcast listening: can the broadcast audio of Central Control Room be sent into power amplifier and loud speaker according to the order of master station, can send the situ microphone signal back to Central Control Room again and monitor.
Detection alarm: embedded audio controller continuous detecting power amplifier voltage and monitoring loudspeaker signal.When fault, can send two class alarm signals to main control computer.
Timed power on/off: can be according to the switching on and shutting down timetable of main control computer issue, timing start and stop power amplifier and loud speaker.Be the impact that prevents to power on simultaneously to power amplifier and loud speaker, each embedded audio controller is according to numbering startup and shutdown successively.
The utility model compared with prior art, its remarkable advantage is that having abandoned with CD player or hard disk is the audio storage medium, guaranteed system controllability, avoided the damage of mechanical device long-time running.Embedded background music controller has been integrated the two advantage of traditional Audio Controller and MP3 player, can download the mp3 file to local Flash memory from the source of sound server of main control room by Ethernet, and under the control of master console, carry out the broadcast of music.And functions such as realization regional broadcast, monitoring and fault alarm.
Four, description of drawings
Accompanying drawing is the formation schematic diagram of embedded background music controller of the present utility model.
Five, embodiment
In conjunction with the accompanying drawings, embedded background music controller of the present utility model, it comprises microcontroller 1, on microprocessor, connect data memory 2, data random memory 3, voice-grade channel commutation circuit 4, failure detector circuit 5, electric power management circuit 6 by bus respectively, audio decoding circuit 10, and, be used for audio frequency control by ethernet interface circuit 7 or serial interface circuit 8 connections.Keyboard controller 8 and graphic alphanumeric display 11 are set on the microprocessor.
Adopt high-performance microcontroller and SRAM memory to satisfy the demand of the user program of transplanting embedded real-time operating system and ICP/IP protocol, the Flash memory of 1G capacity is the audio files storage device of embedded background music controller.Can satisfy the storage of 1000 minutes MP3 audio files.Ethernet interface is realized the function of network service, finishes the function that issue, operating state and the fault of transmission, the control command of file report.Embedded background music controller need be realized the decoding to the MP3 audio file, and MP3 decoding adopts hardware mode.
Embedded background music controller comprises that facing to a plurality of sources of sound public broadcasting, background music are play, natural sound effect is simulated, on-the-spot audio is monitored.The source and the whereabouts of each source of sound also are not quite similar, and utility model has designed voice-grade channel commutation circuit module, control by the GPIO mouth of microcontroller.In order to improve the maintainability of system, embedded background music design of Controller the fault self-checking slowdown monitoring circuit.Three the tunnel detect output, are respectively voice band line output, power amplifier output, loud speaker output, and whether can detect has fault to take place.
Claims (4)
1. embedded background music controller, it is characterized in that: it comprises microcontroller [1], on microprocessor, connect data memory [2], data random memory [3], voice-grade channel commutation circuit [4], failure detector circuit [5], electric power management circuit [6] by bus respectively, audio decoding circuit [10], and, be used for audio frequency control by ethernet interface circuit [7] or serial interface circuit [8] connection.
2. embedded background music controller according to claim 1 is characterized in that: keyboard controller [8] and graphic alphanumeric display [11] are set on the microprocessor.
3. embedded background music controller according to claim 1 is characterized in that: the fault self-checking slowdown monitoring circuit has three the tunnel to detect output, is respectively voice band line output, power amplifier output, loud speaker output.
4. embedded background music controller according to claim 1 and 2 is characterized in that: voice-grade channel commutation circuit module, control by the GPIO mouth of microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201522936U CN201018633Y (en) | 2006-12-30 | 2006-12-30 | Embedded type background music controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201522936U CN201018633Y (en) | 2006-12-30 | 2006-12-30 | Embedded type background music controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201018633Y true CN201018633Y (en) | 2008-02-06 |
Family
ID=39059135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201522936U Expired - Fee Related CN201018633Y (en) | 2006-12-30 | 2006-12-30 | Embedded type background music controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201018633Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592629A (en) * | 2012-03-06 | 2012-07-18 | 济南蓝动激光技术有限公司 | Intrinsically safe network voice controller for mining |
-
2006
- 2006-12-30 CN CNU2006201522936U patent/CN201018633Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592629A (en) * | 2012-03-06 | 2012-07-18 | 济南蓝动激光技术有限公司 | Intrinsically safe network voice controller for mining |
| CN102592629B (en) * | 2012-03-06 | 2015-04-08 | 济南蓝动激光技术有限公司 | Intrinsically safe network voice controller for mining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |